What is a linear spring rate?

A linear spring rate means the spring compresses at a constant rate for every unit of force applied. This offers predictable suspension behavior, which is beneficial for performance tuning.

What does the 61mm ID refer to?

The 61mm ID refers to the inner diameter of the spring. This measurement is important for ensuring the spring fits correctly onto the shock absorber body of a coilover system.

Is this spring suitable for daily driving?

With a rate of 360 N/mm, this is a stiff spring designed for performance or track use. While it can be used on a street car, it will result in a firmer ride compared to softer springs.

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Specifications

Brand: AST
Part #: AST-150-360-61
UPC: astAST-150-360-61

AST Linear Race Springs - 150mm Length x 360 N/mm Rate x 61mm ID - Single

Name: AST Linear Race Springs - 150mm Length x 360 N/mm Rate x 61mm ID - Single
Brand: AST
SKU: ast-ast-linear-race-springs-150mm-length-x-360-n-mm-rate-x-61mm-id-single-t14-329816
Price: 103.36 USD
Availability: BackOrder

$103.36

On Backorder

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Key Features

This product is a single AST Linear Race Spring.
The spring measures 150mm in length.
It has a 61mm inner diameter.
The spring rate is 360 N/mm, indicating a stiff spring.
Features a linear spring design for consistent compression.

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About this part

Product Details

This listing is for a single AST Linear Race Spring. You get one spring, measuring 150mm in length with a 61mm inner diameter. It's designed with a spring rate of 360 Newtons per millimeter, which is a fairly stiff rate suitable for performance applications.

These springs are built for coilover setups where a specific, consistent spring rate is crucial for handling and suspension response. The linear rate means the spring compresses at a constant rate throughout its travel, providing predictable suspension behavior. This makes them a solid option for track cars or performance street setups where precise suspension tuning is important.